help!

So I had a misscarge 2 months ago,stoped bleeding after 3weeks,and I feel pregnant again.im afraid to take a test cause this bay didn't come in the way I wanted,it wasn't consensual.My breasts are up a size,I've been super nauseous,I feel like I'm gaining weight. My period only lasted about 3days last month,4 days the month before,both times super light and not on Time and I'm normally regular,I took a test about a week ago and got a blood test a week after the non-consensual sex,all negative haven't had sex since.... is it possible to be pregnant? Even with those other negatives? I just don't know if it's worth buying another test. Please please please comment